The webpage is wrong or better said, confusing.
EP8 is also short for the new EP801.
The old EP800 is not compatible. This information is direct from Shimano. I asked them.
I switched the adapter. MT7 works perfect with MDR-P.
At the moment, I'm using my winter tyre which has a SRAM Disk. Also fine.
I don't like adapter with longer screws like the Magura.
The Galfer has seperate screws.
If it is the 2023 model, you have the pressure relive valves, so no need to unscrew anything.
Unfortunately, RS is greasing the Zeb (maybe also others) too much, which can end in a smaller negative chamber or even blocking the small holes between positive and negative. There is another thread...
There is written so much stuff, which is just not true, that's the issue.
Read, try, test, decided. You need to do it by yourself.
non fidarsi di qualcosa che non si è provato da soli
Spectral is a perfect Trail bike, but also a good Enduro. And mine is now for me a perfect Enduro.
I checked not all figures (yet), only head angel, which is now 64 degree.
I guess, BB is a bit higher.
It feels much better, I have less ground contact.
I was fearing a bit, about climbing, but also this is perfect.
Only thing, the front is a bit heavier then the back, so jumping needs to be...